Multi-jet merging with TMD parton branching
| Autor: | Bermudez Martinez, Armando, Hautmann, Francesco, Mangano, Michelangelo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Nuclear and High Energy Physics
showers [parton] FOS: Physical sciences momentum spectrum [transverse momentum] jet: multiplicity transverse momentum dependence transverse momentum momentum spectrum parton: showers transverse momentum: momentum spectrum hard scattering High Energy Physics - Phenomenology (hep-ph) Jets and Jet Substructure quantum chromodynamics recoil jet multiplicity ddc:530 initial state Particle Physics - Phenomenology vector boson Physics hep-ph Parton Shower High Energy Physics - Phenomenology CERN LHC Coll parton showers hadron multiplicity [jet] |
| Zdroj: | Journal of High Energy Physics Journal of high energy physics Journal of high energy physics 09(9), 060 (2022). doi:10.1007/JHEP09(2022)060 |
| ISSN: | 1126-6708 |
| DOI: | 10.3204/PUBDB-2022-04237 |
| Popis: | Journal of high energy physics 09(9), 060 (2022). doi:10.1007/JHEP09(2022)060 One of the main theoretical systematic uncertainties in studies of final states with large jet multiplicities at high-energy hadron colliders is associated with the merging of QCD parton showers and hard-scattering matrix elements. We present a method to incorporate the physics of transverse momentum recoils due to initial-state shower evolution into multi-jet merging algorithms by using the concept of transverse momentum dependent (TMD) distributions and the associated parton branching. We investigate the dependence on the merging scale and illustrate the impact of the new method at the level of both exclusive and inclusive final-state observables by studying differential jet rates, transverse momentum spectra and multiplicity distributions, using vector boson + jets events at the LHC as a case study. Published by SISSA, Trieste |
| Databáze: | OpenAIRE |
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